Dong Bang Data Technology Co., Ltd.

Kld Co., Ltd.

Young-Jae Ha

Hyun Jun Ha

Seong Jun Ha

Deok Sook Won

Sung Jun Ha

Ok Jun Jang

Seok Moo Jung

Jong Yuap Won

Byung Yun Jin

Provided is a pixel integrate scanning (PIS) distributed type automatic power-saving electronic display board, which histogram-equalizes a reference value of color values of an initial image signal on the basis of image pulses along with the drive control for easily implementing a high-definition image to set the value of a current (If) supplied to and flowing through the LED, and allows the gain controller to compare the set current value with a difference between the image reference value of the gamma controller and the correction value of the histogram-equalized image and determine a change in a subtraction loss value based on the power consumption difference of a display image in consideration of image quality change, brightness, and image size to designate a current value for display on the electronic display board and transmit corresponding image information so that the power-saving operation of the LED module is automatically performed.

Pixel integrate scanning (PIS) distributed type automatic power-saving electronic display board

An electronic display board is configured to control 4-way dual scanning in which a gray scale pixel (GSP) is applied to a DICT, wherein an MCU, which is equipped with a GSP function along with driving control and DICT control for easily implementing a high-definition image, can switch, by dual scanning, an image in which an image data value with a gamma value determined on a histogram by (a gamma controller) of an image processing DICT unit including a GSP has been gray-scaled by the GSP to equalize and process the image through gamma correction of the image and the histogram of the brightness of the image, so that the image can be displayed on the electronic display board without noises such as interruption of the image and distortion of the image quality even under the control of image transmission for high-speed processing.

Electronic display board for controlling 4 way dual scanning in which gray scale pixel (GSP) is applied to dynamic image correction technology (DICT)

A four-way dual scanning electronic display board capable of scan control, whereby, in order to provide drive control, an LED module arrangement method, and processing for each LED pixel dot (R, G, B), which are for easily enabling a high definition image, pixel display dots of an LED module are controlled by processing image display dots of the module by means of a four-way method by an automatic image switching device through the display control of SCU image switching, in order to display a high definition image through the four-way control of each image dot (R, G, B) pixel, and thus high resolution image quality may be enabled and displayed.

Four-way dual scanning electronic display board capable of scan control

Provided is an an LED electronic bulletin board enabling high-speed image calibration, which is configured to apply brightness calibration data in consideration of brightness characteristics according to a brightness value through determination of whether or not there is a difference in a brightness value of a pixel or a part of an expression portion of the LED electronic bulletin board, which is to be expressed, with respect to image information inputted through a pixel capacitor controller installed between an image input device and a main controller unit (MCU), and then calibrate the image data inputted in real-time to express brightness-calibrated image data on the LED electronic bulletin board so that the image brightness of the electronic bulletin board can be calibrated irrespective of a configuration of an electronic bulletin board expression driving circuit.

LED electronic bulletin board enabling high-speed image calibration

The invention relates to an LED electronic sign board capable of power-saving per pixel line, comprising: an LED display panel; a panel driver; a switching mode power supply that receives AC power, generates driving power required to operate the LED display panel and the panel driver and supplies power to the LED display panel and the panel driver; a black line extractor that analyzes an image signal which will be displayed on the LED display panel and extracts pixel lines which becomes black per LED module; and a main controller that controls the panel driver to display an image on the LED display panel according to the image signal, and that controls a switching signal for the operation of the switching mode power supply to shut off driving power that is supplied to the pixel lines extracted by the black line extractor from the switching mode power supply.

Growing community of inventors

Seoul, South Korea

Young-Jae Ha